Modeling asphaltene precipitation in live crude oil using cubic plus association (CPA) equation of state

Vapor–Liquid–Liquid Equilibrium Modeling of Water/Bitumen/Solvent (C1, C2, C3, and n-C4) Mixtures Using a Cubic-Plus-Association Equation of State

“…This equation is a combination of the classical simple SRK equation with an advanced association term, which is Wertheim’s first-order thermodynamic perturbation theory (TPT-1). , The SRK term considers the physical interaction, and the advanced term accounts for the association. Performance of this EoS was acceptable in different applications in the petroleum industry, such as predicting asphaltene precipitation in natural depletion, − gas injection, − in situ oil upgrading, liquid–liquid equilibrium (LLE) modeling in the solvent-assisted bitumen recovery method, , and calculating the solvent/bitumen mixture viscosity in expanding solvent SAGD …”